Guide sleeve of numerical control turret punch press upper die

Abstract

The invention provides a guide sleeve of a numerical control turret punch press upper die and relates to improvement on a structure of the guide sleeve of the numerical control turret punch press upper die. A main body is cylindrical; the upper end of the main body is provided with a circular bead; an inner step circle connected with a material pressing board is arranged on the cylindrical opening of the lower end of the main body; and the outer cylindrical surface of the main body is provided with an H-shaped oil groove. As the lubricating oil groove is changed to be H-shaped, the guide sleeve meets the requirement of axial lubrication and makes the machining of such an oil groove more convenient, thereby greatly saving the working time. Furthermore, a clamp spring groove is formed on the lower cylindrical opening; of course, the structure of the material pressing board has a tiny change, namely a step circle and a circumferential concave groove are added; by the clamp spring connection, the material pressing board is convenient to demount and mount; at the same time, compared with the original multi-elastic-sheet structure, the invention has the advantages that: the guide sleeve is easier to process; and during use, the guide sleeve has higher reliability and reduces the amount of accessories.

Description

technical field [0001] The invention relates to the improvement of the structure of the mold guide sleeve on the numerically controlled turret punch press. Background technique [0002] In the guide sleeve of the prior art, in order to improve the lubrication condition between the outer cylindrical surface and the turret station, a threaded oil groove is set on the outer cylindrical surface, but it is difficult to process this type of oil groove, and the processing time is long . In addition, in the guide sleeve in the prior art, in order to connect the binder plate of its lower edge, a plurality of symmetrical elastic pieces are arranged on the circumference to prevent the binder plate from falling, although it can facilitate the removal of the binder plate. , installed, but the number of parts of the entire upper mold assembly increases, and the reliability of the connection is low. Contents of the invention [0003] Aiming at the above problems, the present invention ...

AI Technical Summary

Problems solved by technology

[0002] In the guide sleeve of the prior art, in order to improve the lubrication condition between the outer cylindrical surface and the turret station, a threaded oil groove is set on the outer cylindrical surface, but it is difficult to process this type of oil groove, and the processing time is long

In addition, in the guide sleeve in the prior art, in order to connect the binder plate of its lower edge, a plurality of symmetrical elastic pieces are arranged on the circumference to prevent the binder plate from falling, although it can facilitate the removal of the binder plate. , installed, but the number of parts of the entire upper mold assembly increases, and the reliability of the connection is low

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